Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Affiliates 
 Visitors 
 Students 
 Research 
 ICAM-LANL 
 Publications 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Colloquia 
 Colloquia Archive 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Colloquia 
 
 Jobs 
 Students 
 Summer Research 
 Visitors 
 Description 
 Past Visitors 
 Services 
 General 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Monday, October 26, 2009
10:00 AM - 11:00 AM
CNLS Conference Room (TA-3, Bldg 1690)

Seminar

Numerical Modeling of Multiphase and Multimaterial Flow Problems

Shaolin Mao
Advanced Dynamics Inc, Lexington, KY

Three parts will be included in this presentation. The first part focuses on gas-liquid and gas-solid multi-phase flow using large-eddy simulation (LES), innovative particle-in-cell method (PIC) methods, and Lagrangian stochastic approach (Markov model). A direct application is the modeling of coughing and sneezing and influenza virus migration in work place, a NIH funded NIOSH collaborative project. New solver has been developed based on this work for an in-house CFD tool. A related topic, material point method (MPM), will also be involved which is the second part of this talk. The MPM combined with adaptive mesh refinement (AMR) technique is applied to investigate complicated fluid-structure interaction (FSI) such as aircraft wing flutter and other aeroelastic problems. MPM avoids explicit discretization of convection terms in momentum eqautions and there is no mesh distortion problem needs to be handling with in a case on large deformation. Traditionally, finite volume, multi-material compressible flow approach is applied for FSI simulation in which finite volume method is for fluid flow and MPM for solid materials. This talk will report some latest effort on multi-material simulation by using MPM for both fluid and solid materials. The third part is about my work on large-scale industrial applications by using CFD thermal analysis toos in order to validate and verify Tier 4 (a) and (b) disel engine and heavy-duty truck system.

Host: Mikhail Shashkov